A table that is stowable and deployable from a seatback of a passenger seat includes a substantially planar food tray with a first surface and a second surface substantially parallel to the first surface. The continuous recording sheet includes plural recording sheets, and a splicing portion for splicing the plural recording sheets to one another in one line. A selector selects the available CODECs responsive to the measured power level. Each lenticular lens is against light location, and incident light can be reflected through the angle of microstructure surface at the entrance facet, but farther location can be resulted in total refraction due to large inclined angle, and diminishing the transmission light of light source then influencing the uniformity, finally reducing total reflection of wide angle.