A modular container (2) for a flat display panel (3) has a mounting shelf (55) for the panel and power means (48) for selectively raising and lowering the mounting shelf and vertical channels (108) or geared tracks in the container positioned to receive side edges of the panel and adjustable laterally to accommodate panels of different widths. A modular container for a flat display panel has a mounting shelf for the panel and power means for selectively raising and lowering the mounting shelf and remotely controlled power means (32, 76), for moving said container with respect to a seated or recumbent person.