Image Display Device and Production Method Thereof

Abstract

An image display device, and a production method thereof are provided, which are capable of suppressing warping of a protective panel formed from a plastic as much as possible. In an image display device having a liquid crystal display panel 1 and a transparent protective panel 2 formed from a plastic which are arranged facing each other via a cured resin, an outer dimension of the protective panel 2 is made larger than an outer dimension of the liquid crystal display panel 1, curing of a resin composition 4 is carried out in a state where a peripheral edge of the protective panel 2 is fixed with a fixing jig 5, and the peripheral edge of the protective panel 2 is fixed with the fixing jig 5 even after the curing of the resin composition 4. Alternatively, the outer dimension of the protective panel 2 is substantially equal to an outer dimension of the liquid crystal display panel 1, this outer dimension is substantially equal to an inner dimension of a case 8 of the liquid crystal display panel 1 and the protective panel 2, and the curing of the resin composition 4 is carried out in a state where the resin composition 4 is in contact with substantially the whole face of the protective panel 2.

1 . An image display device comprising an image display panel and a transparent protective panel formed from a plastic which are arranged facing each other via a cured resin,
 wherein an outer dimension of the protective panel is made larger than an outer dimension of the image display panel, and a peripheral edge of the protective panel is fixed with a fixing jig.   
   
   
       2 . The image display device according to  claim 1 , wherein the protective panel has a shielding part on a peripheral edge thereof with the shielding part being fixed with the fixing jig. 
   
   
       3 . The image display device according to  claim 1 , comprising a case serving as the fixing jig. 
   
   
       4 . The image display device according to  claim 3 , wherein an upper face of the peripheral edge of the protective panel is held by the case. 
   
   
       5 . The image display device according to  claim 3 , wherein a lower face of the peripheral edge of the protective panel is fixed and supported by the case. 
   
   
       6 . The image display device according to  claim 1 , wherein a substantially whole face of the image display panel is adhered to the cured resin. 
   
   
       7 . An image display device comprising an image display panel and a transparent protective panel formed from a plastic which are arranged facing each other via a cured resin,
 wherein an outer dimension of the protective panel is substantially equal to an outer dimension of the image display panel, the outer dimension is equal to an inner dimension of a case of the protective panel and the image display panel, and a substantially whole face of the protective panel is adhered to the image display panel by the cured resin.   
   
   
       8 . The image display device according to  claim 1 , wherein the protective panel is formed from a polymethyl methacrylate. 
   
   
       9 . The image display device according to  claim 1 , wherein the cured resin is obtained by curing a resin composition having a curing shrinkage ratio of 5% or lower by UV-ray irradiation, and has a storage modulus at 25° C. of 1×10 7  Pa or lower. 
   
   
       10 . The image display device according to  claim 9 , wherein the resin composition contains at least one kind of polymer selected from the group consisting of a polyurethane acrylate, a polyisoprene-based acrylate or an ester thereof, a hydrogenated terpene resin, and a butadiene polymer; at least one kind of acrylate monomer selected from the group consisting of isobornyl acrylate, dicyclopentenyl oxyethyl methacrylate, and 2-hydroxybutyl methacrylate; and a photopolymerization initiator. 
   
   
       11 . The image display device according to  claim 1 , wherein the image display panel is a liquid crystal display panel. 
   
   
       12 . A method for producing an image display device comprising the steps of arranging an image display panel and a transparent protective panel formed from a plastic to face each other via a resin composition, and curing the resin composition,
 wherein an outer dimension of the protective panel is made larger than an outer dimension of the image display panel, and the resin composition is cured in a state where a peripheral edge of the protective panel is fixed with a fixing jig.   
   
   
       13 . The method for producing an image display device according to  claim 12 , wherein the protective panel has a shielding part on the peripheral edge thereof, and the resin composition is cured in a state where the shielding part is fixed with the fixing jig. 
   
   
       14 . The method for producing an image display device according to  claim 12 , wherein a case is used as the fixing jig. 
   
   
       15 . The method for producing an image display device according to  claim 14 , wherein the resin composition is cured while an upper face of the peripheral edge of the protective panel is held by the case. 
   
   
       16 . The method for producing an image display device according to  claim 14 , wherein the resin composition is cured while a lower face of the peripheral edge of the protective panel is fixed with the case. 
   
   
       17 . A method for producing an image display device comprising the steps of arranging an image display panel and a transparent protective panel formed from a plastic to face each other via a resin composition, and curing the resin composition, wherein an outer dimension of the protective panel is made substantially equal to an outer dimension of the image display panel, the outer dimension is made substantially equal to an inner dimension of a case of the protective panel and the image display panel, and the resin composition is cured in the case in a state where a substantially whole face of the protective panel is in contact with the resin composition. 
   
   
       18 . The method for producing an image display device according to  claim 12 , wherein the resin composition is cured by UV-ray irradiation. 
   
   
       19 . The method for producing an image display device according to  claim 12 , wherein the resin composition has a curing shrinkage ratio of 5% or lower and a cured resin thereof has a storage modulus at 25° C. of 1×10 7  Pa or lower. 
   
   
       20 . The method for producing an image display device according to  claim 19 , wherein the resin composition contains at least one kind of polymer selected from the group consisting of a polyurethane acrylate, a polyisoprene-based acrylate or an ester thereof, a hydrogenated terpene resin, and a butadiene polymer; at least one kind of acrylate monomer selected from the group consisting of isobornyl acrylate, dicyclopentenyl oxyethyl methacrylate, and 2-hydroxybutyl methacrylate; and a photopolymerization initiator.