Method of manufacturing bottom chassis and method of manufacturing curved display device, and curved display device using the same

A method of manufacturing a curved backlight unit comprising the steps of:

• manufacturing a curved backlight unit by forming and curving a reinforcement structure on a bottom chassis using the roll-forming;
• and
• fixing the display panel using the edge portion of the curved back light unit,
• wherein the reinforcement structure is formed by roll-forming and bending the flat plate body of the bottom chassis, and is formed in the longitudinal direction of the flat plate body.

A curved back light unit on which a display panel is placed in a curved shape,

• a bottom chassis that is bent in a predetermined curvature corresponding to the curvature of the display panel and includes a reinforcement structure that is formed to be bent toward the outward;
• and
• an edge portion that is formed to be bent from the edge of the bottom chassis,
• wherein the reinforcement structure is formed by roll-forming and bending the flat plate body, and the reinforcement structure is formed in the longitudinal direction of the flat plate body,