A method for manufacturing a stereoscopic image display apparatus includes a bonding step of bonding an image display panel and a phase difference element by disposing an adhesive layer between the entire surfaces thereof, the image display panel displaying a right-eye image and a left-eye image by
A method for manufacturing a stereoscopic image display apparatus includes a bonding step of bonding an image display panel and a phase difference element by disposing an adhesive layer between the entire surfaces thereof, the image display panel displaying a right-eye image and a left-eye image by regularly mixing them in a plane, the phase difference element including a right-eye image display section corresponding to the right-eye image and a left-eye image display section corresponding to the left-eye image, the phase difference element achieving different polarizations between the right-eye image display section and the left-eye image display section, the adhesive layer being composed of a transparent gel acrylic adhesive with a thickness of 25 to 100 μm, hardness of the adhesive being more than 0 and 350000 μN or less, holding strength of the adhesive at 40° C. after bonding being 8 to 20 N/20 mm.
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1. A method for manufacturing a stereoscopic image display apparatus, comprising: a bonding step of bonding an image display panel and a phase difference element by disposing an adhesive layer between the entire surfaces of the image display panel and the phase difference element, the image display
1. A method for manufacturing a stereoscopic image display apparatus, comprising: a bonding step of bonding an image display panel and a phase difference element by disposing an adhesive layer between the entire surfaces of the image display panel and the phase difference element, the image display panel displaying a right-eye image and a left-eye image by regularly mixing them in a plane, the phase difference element including a right-eye image display section corresponding to the right-eye image and a left-eye image display section corresponding to the left-eye image, the phase difference element achieving different polarizations between the right-eye image display section and the left-eye image display section, the adhesive layer being composed of a transparent gel acrylic adhesive with a thickness of 25 to 100 μm, hardness of the adhesive having a value which is both (i) more than 0 and (ii) 350000 μN or less, and holding strength of the adhesive at 40° C. after bonding being 8 to 20 N/20 mm. 2. The method for manufacturing a stereoscopic image display apparatus according to claim 1, wherein, in the bonding step, a bonding roller that pressurizes a stacked body including the image display panel, the adhesive layer, and the phase difference element from its top and bottom in a stacked direction at a pressure within a certain range is moved at a speed within a certain range from a first end of the stacked body to a second end to bond the stacked body; andduring the bonding, a location of an edge of the phase difference element at the second end is held such that there is a gap between the phase difference element and the image display panel, at a position closer to the second end relative to the bonding roller, the location of the edge being shifted in coordination with movement of the bonding roller. 3. The method for manufacturing a stereoscopic image display apparatus according to claim 2, further comprising: a positioning step of determining a planar position of a constituent of the stacked body before the bonding step,wherein, in the positioning step, illuminating light emitted from a light source disposed on one side of the stacked body reaches the stacked body through a polarizing plate disposed between the light source and the stacked body, and the illuminating light that has passed through the phase difference element constituting the stacked body is then picked up with an image pickup device disposed on another side of the stacked body, whereby a boundary between the right-eye image display section and the left-eye image display section of the phase difference element is recognized. 4. The method for manufacturing a stereoscopic image display apparatus according to claim 2, further comprising: a positioning step of determining a planar position of a constituent of the stacked body before the bonding step,wherein, in the positioning step, even if light transmittance of the image display panel constituting the stacked body is minimum, illuminating light having sufficient intensity that passes through the image display panel is emitted from a light source disposed on one side of the stacked body and the illuminating light that has passed through the stacked body is then picked up with an image pickup device disposed on another side of the stacked body, whereby a planar position of each constituent of the stacked body is recognized. 5. The method for manufacturing a stereoscopic image display apparatus according to claim 2, further comprising: an annealing step of heat-treating the phase difference element constituting the stacked body at a certain temperature for a certain period of time before the bonding step. 6. A stereoscopic image display apparatus comprising: an image display panel displaying a right-eye image and a left-eye image by regularly mixing them in a plane;a phase difference element including a right-eye image display section corresponding to the right-eye image and a left-eye image display section corresponding to the left-eye image such that the right-eye image and the left-eye image each has a different polarization; andan adhesive layer disposed between the entire surfaces of the image display panel and the phase difference element to bond the image display panel and the phase difference element, the adhesive layer being composed of a transparent gel acrylic adhesive with a thickness of 25 to 100 μm, hardness of the adhesive having a value which is both (i) more than 0 and (ii) 350000 μN or less, and holding strength of the adhesive at 40° C. after bonding being 8 to 20 N/20 mm.
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