Display device with parallax barrier on substrate and method of manufacturing the same

1. A method of manufacturing a display device including a pair of substrates being opposed to each other and having a display material interposed therebetween, the method comprising the steps of:

bonding a first mother substrate and a second mother substrate together to form a cell substrate comprising a matrix which, upon cutting in a direction transverse to the bonding plane, forms at least one panel;

forming, after formation of the cell substrate, a parallax barrier layer for separating a display image on an outer surface of the cell substrate at a side of one of the first and second mother substrates; and

cutting, after formation of the parallax barrier layer, the cell substrate and the parallax barrier layer in the direction transverse to the bonding plane, to form the at least one panel.

2. The method of manufacturing a display device according to claim 1 , further comprising the step of thinning one of the first and second mother substrates after formation of the cell substrate and before formation of the parallax barrier layer,

wherein in the step of forming the parallax barrier layer, the parallax barrier layer is formed on an outer surface of the cell substrate at a side of one of the first and second mother substrates thinned.

3. The method of manufacturing a display device according to claim 1 , wherein in the step of forming the cell substrate, the first mother substrate and the second mother substrate are bonded together with a sealing material interposed therebetween, the sealing material including a panel sealing portion provided for each panel and a substrate sealing portion surrounding the panel sealing portion.

4. The method of manufacturing a display device according to claim 1 , wherein

the display device is a liquid crystal display device including a liquid crystal serving as the display material interposed between a color filter substrate and a thin film transistor substrate that are opposed to each other, and

the color filter substrate and the thin film transistor substrate are obtained from the first mother substrate and the second mother substrate by the step of dividing the cell substrate into the at least one panel.

5. The method of manufacturing a display device according to claim 2 , wherein

the display device is a liquid crystal display device including a liquid crystal serving as the display material interposed between a color filter substrate and a thin film transistor substrate that are opposed to each other, and

the color filter substrate and the thin film transistor substrate are obtained from the first mother substrate and the second mother substrate by the step of dividing the cell substrate into the at least one panel.

6. The method of manufacturing a display device according to claim 3 , wherein

the display device is a liquid crystal display device including a liquid crystal serving as the display material interposed between a color filter substrate and a thin film transistor substrate that are opposed to each other, and

the color filter substrate and the thin film transistor substrate are obtained from the first mother substrate and the second mother substrate by the step of dividing the cell substrate into the at least one panel.

7. The method of manufacturing a display device according to claim 4 , wherein in the step of forming the parallax barrier layer, the parallax barrier layer is formed of the same metal material as a black matrix for forming the color filter substrate.

8. The method of manufacturing a display device according to claim 5 , wherein in the step of thinning one of the first and second mother substrates, one of the first and second mother substrates is thinned to a predetermined thickness so that a distance between a color filter layer constituting the color filter substrate and the parallax barrier layer is set to a value suitable for one of a three-dimensional display device and a dual-screen display device.

9. The method of manufacturing a display device according to claim 4 , further comprising the step of bonding a polarizing plate to an outer surface of the at least one panel obtained by division, after the step of dividing the cell substrate into the at least one panel.