Food display counter comprising a support framework, a vat for containing the products to be displayed, preferably refrigerated, delimited by opposite sideboards, by a front vertical transparent panel facing the client, by a front wall facing the seller, as well as a bottom, and by an upper cover formed by a fixed longitudinal panel and by an adjacent mobile longitudinal panel, as well as lateral devices for the opening/closing of the mobile panel, wherein below said vat, if refrigerated, there is provided a compartment for housing a refrigeration apparatus, wherein in addition the lateral devices for controlling the opening/closing are each housed on an own support sheet which can be respectively fixed to an inner sideboard of the counter, and singularly comprise: - an electrical actuator fixed to said support sheet, extending along said support sheet and having a slide mobile to and fro and supporting a driving roller, - a horizontal guide fixed to said support sheet and extending along the same above said electrical actuator, - at least one trolley associated to and slidable on said horizontal guide and fixed to a plate-like slider, which has - at the lower part - a seat for housing said driving roller and being longitudinally translatable parallel to said support sheet, - two vertical guides extending - spaced from each other - on said slider on the side opposite to that supporting the at least one trolley slidable on the horizontal guide, - at least one trolley slidable on each vertical guide, associated to the same and fixed to a support plate facing towards the inner part of the vat and supporting - at the upper part - an end of the mobile panel, wherein - on the side facing towards said slider the support plate has a pin supporting a bearing adapted to roll on the oblique track of a directional cam fixed to said support sheet and adapted to determine an oblique translation movement or said support plate and of the mobile panel fixed thereto from a closing position with translation of the slide of the actuator in a longitudinal direction, or a lowering oblique movement of said support plate and of the associated mobile panel from a raised horizontal opening position in a lowered horizontal, closing position, with translation of said slide of the actuator in the other movement direction. - an electrical actuator fixed to said support sheet, extending along said support sheet and having a slide mobile to and fro and supporting a driving roller, - a horizontal guide fixed to said support sheet and extending along the same above said electrical actuator, - at least one trolley associated to and slidable on said horizontal guide and fixed to a plate-like slider, which has - at the lower part - a seat for housing said driving roller and being longitudinally translatable parallel to said support sheet, - two vertical guides extending - spaced from each other - on said slider on the side opposite to that supporting the at least one trolley slidable on the horizontal guide, - at least one trolley slidable on each vertical guide, associated to the same and fixed to a support plate facing towards the inner part of the vat and supporting - at the upper part - an end of the mobile panel, wherein - on the side facing towards said slider the support plate has a pin supporting a bearing adapted to roll on the oblique track of a directional cam fixed to said support sheet and adapted to determine an oblique translation movement or said support plate and of the mobile panel fixed thereto from a closing position with translation of the slide of the actuator in a longitudinal direction, or a lowering oblique movement of said support plate and of the associated mobile panel from a raised horizontal opening position in a lowered horizontal, closing position, with translation of said slide of the actuator in the other movement direction.