Thin mirror with truss backing and mounting arrangement therefor

A panel assembly comprising:

• a flexible panel having an front surface and a back surface opposite the front surface;
• a support structure comprising:
• a backer sheet;
• a plurality of risers, each riser defined by a cutout portion of the backer sheet, each riser having a riser body having a length and extending from a riser first end portion to a riser second end portion located opposite to the riser first end portion relative to the length of the riser body, the riser body having two laterally opposite free edges extending the length of the riser body, the riser first end portion being bent from the backer sheet such that the riser body extends away from the backer sheet to the riser second end portion;
• and
• a first tab and a second tab defined by the riser second end portion of each riser, the first tab extending transverse to the riser body in a first direction, and the second tab extending from the riser body in a second direction generally opposite to the first direction;
• wherein the first tab and the second tab of each riser are attached to the back surface of the flexible panel.

A support structure for a flexible panel, the support structure comprising:

• a backer sheet having a length and a width;
• a plurality of risers disposed along the length of the back sheet and along the width of the backer sheet to define an array of risers on the backer sheet, each riser having a first end portion connected to the backer sheet and extending away from the backer sheet to a second end portion located opposite to the first end portion relative to a length of the riser, and each riser being separate and spaced apart from an adjacent riser from the first end portion to the second end portion to define a space between adjacent risers from the first end portion to the second end portion;
• and
• a first tab and a second tab defined by a section of the second end portion of each riser, the first tab and the second tab extending generally in opposite directions.