Information processing unit

1. An information processing unit comprising:

a display panel capable of displaying a video image; and

a casing having a rear face panel that covers at least a back side of the display panel, the back side being opposite to a display face of the display panel,

wherein the rear face panel has an opposed portion opposed to the display panel, and the opposed portion includes a wall-thinned portion having a small thickness, and a wall-thickened portion that is a part of the wall-thinned portion and has a thickness increased in a direction toward the display panel,

the wall-thickened portion is formed continuously from one side to an opposite side of the opposed portion, the one side and the opposite side forming a perimeter of the opposed portion and being opposite to each other and

the wall-thickened portion has an inclined face at a boundary with the wall-thinned portion.

2. The information processing unit according to claim 1 , wherein a ratio of a thickness-direction height of the wall-thickened portion from the opposed portion of the wall-thinned portion, with respect to a thickness of the wall-thinned portion, is set at not less than 0.35 and not more than 0.75.

3. The information processing unit according to claim 1 , wherein the wall-thinned portion has a wall thickness of not less than 0.6 mm and not more than 0.8 mm.

4. The information processing unit according to claim 2 , wherein the wall-thickened portion has an inclined face at a boundary with the wall-thinned portion.

5. The information processing unit according to claim 1 , having a pair of long sides and a pair of short sides, the long sides and the short sides forming the perimeter of the opposed portion,

wherein the wall-thickened portion is formed so as to extend from one long side to the other long side of the pair.

6. The information processing unit according to claim 1 , having a pair of long sides and a pair of short sides, the long sides and the short sides forming the perimeter of the opposed portion,

wherein the wall-thickened portion is formed so as to extend from one short side to the other short side of the pair.

7. The information processing unit according to claim 1 ,

wherein the rear face panel has a raised part that is raised on a rear face side with a level-difference portion being interposed therebetween, the level-difference portion being continuous from the one side to the opposite side of the opposed portion,

the opposed portion in the raised part has a greater distance therefrom to the display panel than a distance from a remaining portion of the opposed portion to the display panel, and

the wall-thickened portion is formed in the raised part.

8. The information processing unit according to claim 7 , wherein the wall-thickened portion is formed in the raised part, along an intersection line portion of the raised part and the level-difference portion.

9. The information processing unit according to claim 7 , wherein the raised part has the wall-thickened portion substantially at a midpoint between a pair of opposite intersection portions.

10. The information processing unit according to claim 1 , the rear face panel of the casing has a second face that is an external face of the information processing unit.

11. The information processing unit according to claim 10 , wherein the wall-thickened portion of the rear face panel is opposed to the display panel without an intervening member.